Self-lubricating lantern-gear.



Patented Nov. i3, 191'?.

v lzfzfffr- .mv M M uw V, A. BOKER! SELF LUBRCATING LANTERN GEAR.

APPucMieN man oc.

l citizen of'zthe United States, residing atv e clare thejfollowingftozbe a full, cleaniand "vrrns Aiis'oxnngbrMrivnnaronsjivinvivnsofrngf i f Specification of '-Iletcers'atent, E tigri-91m fTo all whom imag concern.' l,

Beit known that I, Virus A,Boiiii1i, a

Minneapolis, inthe county of'lgH-ennepin fand Stateot Minnesota, have inventedfrcert'ain new and usefullmprovernents in Self-Lubrieating lLa,nter'nGrearsg :and Ldo hereby deinvention, such fas exact description of the;

will-enable others skilled'in: the artgtjo which itiapp'ertainsto,maireandfnsegtheasame; .f

v `Gly' invention ,hasfor its object tOi provide 'j a simple and highlyeiflciient: self-lubricating f lanternA gear or pinioinrand toesuchnends, i, generally stated', the' inventi on,Y consists i of if combinations of de-v vices hereinafter described and-:.:defined in the novel devices' and the claims.

v The improved#lanternlvearworv pinion while capable of more general application,

hasfl been 'especirally "desi,0 ;ned=for-A use.:A as pinion coperating with the so-calledtt-bull;f.`

gear of a traction wheel of a farm tractor. These bull gears and cooperating pinions must transmit a very great force, and as theyl are necessarily exposed to considerable dust and dirt, are subject to rapid wear. This rapid wear can be reduced very materially by proper lubrication, but lubrication has not hitherto been found an easy matter. Not only the rollers of the lantern gear or pinion should have their journals lubricated, but the faces thereof, and the coper- Vating tooth surfaces of the bull gear should also be lubricated. My improved pinion accomplishes all of these results and certain other important features which will hereinafter appear.

In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several views. Referring to the drawings,

The improved lantern gear and which it is secured is, in Figure 1, partly in side elevation and partly in vertical section on the irregular line 1-1 of Fig. 2; and

Fig. 2 is a plan view of the parts shown in Fig. 1, with some parts sectioned on the line 2 2 thereof.

The axle 3, as shown, has a tapered end on which is rigidly secured the sleeve-like body 4 of the lantern gear. This gear body 4, preferably, a casting and it is formed with heavy laterally spaced outstanding annular flanges 5 that are formed.-

their axle onshown outer `foil i 6 y that are' normally P closed iti'ghtly fitting annular-plates 7V held in positioniby annnlar nuts 8 thawing,threadedengagement with the .1 pro]eating.i ,Y ends of` the y sleeve-like body 1,4.

The inner portionsfof the oil chambersf'd 1are rconnected; by,y a multiplicity, -as shown, gfou'r, loil -dnct's 9,? These oilydu-cts, 9,. showm-are wlooated;,ninetyrlcgrees apart, `Aand they con- -vergetewardthe.outerfsideof,thegear. y bodvsleeve ,trasf Shown, is; held. age-inst f rotation f on tie 'ftapered end Tof .f the axle 9-yb,y1neans ofykey 10, and itis shown s further held -against @axial .displacement anntililfthat :engages thereduced threaded Vglutineone212 i ofthe axle 9' 'ClairlPS a washer 13 directly against theon'ter'endof the said body sleeve, Yand-also against the shouldered, @fat-he axle {Ehe-pins of this lantern gear are, as shown, in the form ofvrollerslii;:thefendsf 1li@ of which are*l re- -duc'ed in diameter and form the journals of the said rollers. These journals 14a rotate in bushings 15 and 16 that are tightly seated in axially alined seats formed in the flanges 5. The bushing 15 has an exterior diameter less than that of the body of the roller 14:, but the exterior of the bushing 16 has an exterior diameter slightly greater than the body of the cooperating roller. This is important, because it permits the bodies of the rollers to be inserted axially through the seats in which the respective bushings 16 are seated.

For example, in assembling, the bushings 15 will irst be pressed to position; then the rollers 14: will be inserted with their advance lends in the bushing 15; and then, the bushings 16 will be forced to position. This, of course, must be done inner plate 7 is removed from working position. The said bushings 15 and 16 should be so tightly forced into the seats that they will not rotatel therein.

When both plates 7 are removed,l driving force applied to the right hand or outer ends of the rollers, will force the same to the bushings 16 axially out of working position, so that with this gear it is an easy matter to replace both bushings and rollers. x

A gear of this kind will usually be einployed in as that indicated, in part, by dotted lines in Fig. 1, and designated by the numeral 17. When thus used', this so-ealled lantern gear bears the relation thereto et pinten, but it while the left hand or y connection with a bull gear, such will, of course, be understood that a pinion may properly be designated as a small gear, for the purpose of definition.

The oil chambers 6 and ducts 9 will be filled with oil, preferably, a heavy lubricating oil, or semi-liquid grease, and this lubricant will Work its way around the journals one at the outer extremities of the rollers Y and these two oil chambers are interconnect- Y ed by one or more oil ducts or passages which permits oil to flow or to be forced from the one oil chamber into the other. This is believed to be a broadly new feature,

' regardless of the location or arrangement of the oil ducts which interconnect the said two oil chambers.

What I claim is: Y

1. A lantern gear comprising a body frame @epics of this patent may loe obtained for ve cents each, by addressing the Washington, D. C.

Reaches with laterally spaced flanges having oil chambers therein, and circumferentially spaced rollers having their ends journaled in said flanges and exposed to the said oil chambers, the said two oil chambers being interconnected for the flow of oil from the one chamber into the other.

2. A lantern gear comprising a body frame with latterly spaced outstanding flanges having annular oil chambers therein, and circumferentially spaced rollers journaled in said flanges with their ends exposed to the said two oil chambers, the said two cil chambers being interconnected for the flow of oil from the one chamber into the other.

3. A lantern gear comprising a body with laterally spaced outstanding flanges having annular oil chambers, 'and circumferentially spaced rollers having reduced ends journaled in said Hanges and exposed to said oil chambers, the said body having an oil duct interconnected to said two oil chambers.

In testimony whereof I aliiX my signature in presence of two witnesses.

VITUS A. BCKER.

Vitnesses: v F. D. MERCHANT, HARRY D.V KILGORE.

Commissioner of Patents, 

